diff --git a/sulu/article-bundle/2.0/config/packages/sulu_article.yaml b/sulu/article-bundle/2.0/config/packages/sulu_article.yaml
index d5b2eeb0..9e05c220 100644
--- a/sulu/article-bundle/2.0/config/packages/sulu_article.yaml
+++ b/sulu/article-bundle/2.0/config/packages/sulu_article.yaml
@@ -8,9 +8,9 @@ sulu_route:
         Sulu\Bundle\ArticleBundle\Document\ArticleDocument:
             generator: schema
             options:
-                route_schema: /articles/{object.getTitle()}
+                route_schema: '/articles/{object.getTitle()}'
         Sulu\Bundle\ArticleBundle\Document\ArticlePageDocument:
             generator: article_page
             options:
-                route_schema: {translator.trans("page")}-{object.getPageNumber()}
-                parent: {object.getParent().getRoutePath()}
+                route_schema: '{translator.trans("page")}-{object.getPageNumber()}'
+                parent: '{object.getParent().getRoutePath()}'